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Search for "surface" in Full Text gives 2395 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Durable antimicrobial activity of fabrics functionalized with zeolite ion-exchanged nanomaterials against Staphylococcus aureus and Escherichia coli

  • Perla Sánchez-López,
  • Kendra Ramirez Acosta,
  • Sergio Fuentes Moyado,
  • Ruben Dario Cadena-Nava and
  • Elena Smolentseva

Beilstein J. Nanotechnol. 2026, 17, 262–274, doi:10.3762/bjnano.17.18

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  • nanoparticles act against viruses involves the interaction with the surface of the NPs, leading to adhesion and inactivation, thereby preventing the virion from entering the host cell. NPs release ions or transfer them to microorganisms, inducing oxidative stress. Given these possible mechanisms, viral
  • microorganisms are unable to develop mutations for adaptation and are destroyed [8][9]. Recently, several types of NPs, including silver, copper, and zinc, have demonstrated great potential in antimicrobial applications due to their properties such as high specific surface area, safety for human use, multiple
  • treating the fibers at the end of the manufacturing process. Those methods require the use of previously prepared NPs, which are then bonded to the textile through chemical bonding or electrostatic interaction. The pad–dry–cure method is an effective alternative for applying nanoparticles to the surface of
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Published 06 Feb 2026

Multilayered hyperbolic Au/TiO2 nanostructures for enhancing the nonlinear response around the epsilon-near-zero point

  • Fernando Arturo Araiza-Sixtos,
  • Mauricio Gomez-Robles,
  • Rafael Salas-Montiel and
  • Raúl Rangel-Rojo

Beilstein J. Nanotechnol. 2026, 17, 251–261, doi:10.3762/bjnano.17.17

Graphical Abstract
  • has been found that layers of gold with a thickness below 10 nm would lead to an inhomogeneous layer with separated gold “islands” throughout the surface rather than a continuous layer [28]. Because of this, we chose to use a gold layer thickness of 10 nm, the limit to have uniform layers found in
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Published 05 Feb 2026

Gold nanoparticle-decorated reduced graphene oxide as a highly effective catalyst for the selective α,β-dehydrogenation of N-alkyl-4-piperidones

  • Brenda Flore Kenyim,
  • Mihir Tzalis,
  • Marilyn Kaul,
  • Robert Oestreich,
  • Aysenur Limon,
  • Chancellin Pecheu Nkepdep and
  • Christoph Janiak

Beilstein J. Nanotechnol. 2026, 17, 218–238, doi:10.3762/bjnano.17.15

Graphical Abstract
  • the dehydrogenation of β-N-substituted saturated ketones and other fine chemical applications. Keywords: oxidative dehydrogenation; reduced graphene oxide; supported gold nanoparticles; β-N-substituted ketones; Introduction The properties related to the high surface area of matter at the nanometric
  • catalytic properties of AuNPs stem from their nanoscale size, which increases the surface-to-volume ratio, exposes a higher density of active sites, and induces quantum size effects that modulate the electronic structure [5]. These characteristics collectively enhance their reactivity, selectivity, and
  • environments, their tunable surface area and surface chemistry, and electrical conductivity [18][19]. To deposit metal NPs onto a carbon support, procedures such as adsorption or reduction–deposition (RD), co-precipitation, impregnation, and deposition precipitation (DP) are commonly employed [6][19]. Carbon
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Published 30 Jan 2026

Micro- and nanoscale effects in biological and bioinspired materials and surfaces

  • Thies H. Büscher,
  • Rhainer Guillermo Ferreira,
  • Manuela Rebora and
  • Stanislav N. Gorb

Beilstein J. Nanotechnol. 2026, 17, 214–217, doi:10.3762/bjnano.17.14

Graphical Abstract
  • surface structures and their surroundings at nano-, micro-, and macroscales [1]. The physical constraints shaping such interactions are complex for all organisms, including bacteria, plants, and animals and of relevance across all habitats [2]. Understanding these interactions and the functionality of
  • hierarchical structures aids in understanding the principles of biological design and inspires advances in biomimetics, mechanical engineering, and materials science. Biomimetics seeks to obtain knowledge on how these structural and material property adaptations affect surface performance and to draw
  • to produce surface passivation materials that avoid clot formation in a biomedical context. Lastly, the issue includes reviews on applications of such bioinspired nanotechnologies for cultural heritage protection [24], medical therapeutic treatments [25][26], and vitamin B12 biosensing [27]. Lama et
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Published 28 Jan 2026

Time of flight secondary ion mass spectrometry imaging of contaminant species in chemical vapour deposited graphene on copper

  • Barry Brennan,
  • Vlad-Petru Veigang-Radulescu,
  • Philipp Braeuninger-Weimer,
  • Stephan Hofmann and
  • Andrew J. Pollard

Beilstein J. Nanotechnol. 2026, 17, 200–213, doi:10.3762/bjnano.17.13

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  • Cambridge, Cambridge CB3 0FA, United Kingdom 10.3762/bjnano.17.13 Abstract Time of flight secondary ion mass spectrometry (ToF-SIMS) was used to probe the chemistry of graphene grown on copper foil substrates by chemical vapour deposition (CVD) under various growth conditions. The surface sensitivity, mass
  • resolving power, and imaging capability of ToF-SIMS allow us to explore variations in the chemical species present on the graphene surface, as well as in three dimensions under the graphene. In this way, we can observe the impact that variations in the chemical composition of the copper foil have on the
  • substrate, depending on processing conditions employed and the chemical species present on the surface. This has implications for the gas permeation barrier properties of this material, graphene transfer mechanisms, as well as the effectiveness of using the oxidation of the copper foil as a rapid graphene
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Published 21 Jan 2026

Structure-dependent thermochromism of PAZO thin films: theory and experiment

  • Georgi Mateev,
  • Dean Dimov,
  • Nataliya Berberova-Buhova,
  • Nikoleta Kircheva,
  • Todor Dudev,
  • Ludmila Nikolova,
  • Elena Stoykova,
  • Keehoon Hong,
  • Dimana Nazarova,
  • Silvia Angelova and
  • Lian Nedelchev

Beilstein J. Nanotechnol. 2026, 17, 186–199, doi:10.3762/bjnano.17.12

Graphical Abstract
  • isomerization leads to various effects, including molecular orientation, formation of surface relief structures, and photomechanical deformations. Consequently, azo polymers have been intensively studied as interesting photoresponsive materials [7][8][9][10][11]. One of the widely studied azo polymers is the
  • fluorescence. Moreover, the reorientation of the aggregates themselves appears to demand an even greater energy threshold. The enhancement of absorption around 444 nm is of limited practical utility, as the absorption becomes excessively strong, restricting effective energy delivery to the surface layers of
  • with enhanced efficiency or expanded surface coverage. Density functional theory modeling PAZO is a polymer with azobenzene units incorporated as pendant groups attached to the main polymer backbone (Figure 6A). The core of PAZO polymer side chains is the azobenzene fragment (Ar–N=N–Ar), which can
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Published 20 Jan 2026

Safe and sustainable by design with ML/AI: A transformative approach to advancing nanotechnology

  • Georgia Melagraki

Beilstein J. Nanotechnol. 2026, 17, 176–185, doi:10.3762/bjnano.17.11

Graphical Abstract
  • , health, and safety (EHS) risks. The unique physicochemical properties of ENMs, including their high surface-to-volume ratio and reactivity, often result in unpredictable interactions with, and transformations by, biological and ecological systems [9][10]. Traditional risk assessment approaches, while
  • , temperature, surface coating) on nanomaterial behaviour in complex biological or ecological systems [27]. Examples of AI implications within the NM life cycle are depicted in Figure 1. Crucially, these AI-driven methods harmonize with the SSbD frameworks by embedding safety and sustainability considerations
  • and sustainability considerations into nanomaterial development. Need for harmonized testing protocols Establishing standardized and reproducible methodologies for characterizing nanomaterial properties – such as size distribution, surface chemistry, and toxicity profiles – is essential. A unified
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Published 16 Jan 2026

From shield to spear: Charge-reversible nanocarriers in overcoming cancer therapy barriers

  • Madhuri Yeduvaka,
  • Pooja Mittal,
  • Ameer Boyalakuntla,
  • Usman Bee Shaik,
  • Himanshu Sharma,
  • Thakur Gurjeet Singh,
  • Siva Nageswara Rao Gajula and
  • Lakshmi Vineela Nalla

Beilstein J. Nanotechnol. 2026, 17, 159–175, doi:10.3762/bjnano.17.10

Graphical Abstract
  • outcomes over traditional approaches. Among these innovations, charge-reversible nanocarriers have attracted considerable attention due to their ability to overcome physiological and pathological barriers in the tumour microenvironment (TME) by altering their surface charge in response to specific stimuli
  • the crucial role of surface charge in cellular uptake and intracellular transport, highlighting recent advances that demonstrate improved targeting, reduced systemic toxicity, enhanced cellular internalisation, and the potential for integrated approaches, including combination therapies and
  • advancements in nanocarrier-based cancer therapy, recent research has increasingly emphasised refining their physicochemical traits, especially surface charge, to boost therapeutic outcomes. A notable development in this context is the emergence of charge-reversible nanoscale drug delivery systems (CR-NDDSs
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Published 14 Jan 2026

Influence of surface characteristics on the in vitro stability and cell uptake of nanoliposomes for brain delivery

  • Dushko Shalabalija,
  • Ljubica Mihailova,
  • Nikola Geskovski,
  • Andreas Zimmer,
  • Otmar Geiss,
  • Sabrina Gioria,
  • Diletta Scaccabarozzi and
  • Marija Glavas Dodov

Beilstein J. Nanotechnol. 2026, 17, 139–158, doi:10.3762/bjnano.17.9

Graphical Abstract
  • evolution of physicochemical characteristics and surface properties of NLs in biorelevant media. Additionally, in order to point out the influence of specific characteristics on the brain targeting potential of these formulations, we investigated interactions between NLs and blood–brain barrier (BBB, hCMEC
  • showed a time- and concentration-dependent internalization pattern, with high impact of the surface characteristics of the different formulations. In addition, transport studies on hCMEC/D3/SH-SY5Y co-cultures confirmed the successful transport of NLs across the BBB cells and their subsequent uptake by
  • neurons (ranging from 25.17% to 27.54%). Fluorescence and confocal microscopy micrographs revealed that, once internalized, NLs were concentrated in the perinuclear cell regions. Keywords: blood–brain barrier; cell co-culture; cell uptake; internalization; nanoliposomes; stability; surface
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Published 13 Jan 2026

Development and in vitro evaluation of liposomes and immunoliposomes containing 5-fluorouracil and R-phycoerythrin as a potential phototheranostic system for colorectal cancer

  • Raissa Rodrigues Camelo,
  • Vivianne Cortez Sombra Vandesmet,
  • Octavio Vital Baccallini,
  • José de Brito Vieira Neto,
  • Thais da Silva Moreira,
  • Luzia Kalyne Almeida Moreira Leal,
  • Claudia Pessoa,
  • Daniel Giuliano Cerri,
  • Maria Vitória Lopes Badra Bentley,
  • Josimar O. Eloy,
  • Ivanildo José da Silva Júnior and
  • Raquel Petrilli

Beilstein J. Nanotechnol. 2026, 17, 97–121, doi:10.3762/bjnano.17.7

Graphical Abstract
  • ± 1.81 nm), negative zeta potential (−14.8 ± 0.81 mV) and antibody conjugation efficiency of 34.4%. Topographical AFM analysis showed that HSPC-IM-R-PE presented significantly higher surface roughness and viscoelastic contrast, indicating successful antibody anchoring. For cell viability in the HCT-116
  • lipophilic substances. Furthermore, liposomes can also act as a protein delivery system, reducing enzymatic degradation of proteins and enhancing their stability and their permeability through cell membranes [7]. Immunoliposomes provide many advantages by surface functionalization with targeting biomolecules
  • drying for 15 min at room temperature. The analyses were conducted in air, using the tapping mode to prevent damage to the sample surface, by using a PPP-NCSTAu probe (Nanosensors®, Switzerland), with frequency resonance of 125 kHz and spring constant of 5.0 N/m. The scan rate was 1.5 s per line. The
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Published 09 Jan 2026

Functional surface engineering for cultural heritage protection: the role of superhydrophobic and superoleophobic coatings – a comprehensive review

  • Giuseppe Cesare Lama,
  • Marino Lavorgna,
  • Letizia Verdolotti,
  • Federica Recupido,
  • Giovanna Giuliana Buonocore and
  • Bharat Bhushan

Beilstein J. Nanotechnol. 2026, 17, 63–96, doi:10.3762/bjnano.17.6

Graphical Abstract
  • the head and deliberate surface abrasion, caused the partial loss of this piece of art. Discovered in a well, its context suggests intentional removal in ancient times, possibly linked to regime change or iconoclastic acts. These findings support the view that the statue’s destruction was not
  • protect the surface [20]. In the contemporary era, starting in the second half of the 20th century, the concern about safety of the cultural heritage has become increasingly prominent. An example of modern protective coating is represented by shellac, the only resin derived from animals, more precisely
  • stone sculptures and building protection, silicone-based consolidants and acrylic resins were adopted [25], offering resistance by penetrating in the porous structure of the artwork surface. As an alternative, together with the protection of stone structures, the path of restoration was also considered
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Published 07 Jan 2026

Microscopic study of the intermediate mixed state in intertype superconductors

  • Vyacheslav D. Neverov,
  • Alexander V. Kalashnikov,
  • Andrey V. Krasavin and
  • Alexei Vagov

Beilstein J. Nanotechnol. 2026, 17, 57–62, doi:10.3762/bjnano.17.5

Graphical Abstract
  • infinite degeneracy of the superconducting state at the so-called Bogomolnyi (ℬ) point (κ0, Tc) with Tc being the critical temperature [21][22]. At this point, the surface energy between the superconducting and normal phases vanishes, allowing for a continuum of flux–condensate configurations with equal
  • increases, shrinking to a single point at Tc. Based on these findings, we construct a phase diagram of the IT regime, which appears qualitatively consistent with that obtained earlier from perturbation theory for the conventional BCS model with a spherical Fermi surface. Results and Discussion Model and
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Published 07 Jan 2026

Subdigital integumentary microstructure in Cyrtodactylus (Squamata: Gekkota): do those lineages with incipiently expressed toepads exclusively exhibit adhesive setae?

  • Philipp Ginal,
  • Yannick Ecker,
  • Timothy Higham,
  • L. Lee Grismer,
  • Benjamin Wipfler,
  • Dennis Rödder,
  • Anthony Russell and
  • Jendrian Riedel

Beilstein J. Nanotechnol. 2026, 17, 38–56, doi:10.3762/bjnano.17.4

Graphical Abstract
  • for SEM to characterize and measure the microstructures of the ventral scale surface. Six morphometric traits of the epidermal microstructures were quantified using ImageJ, and effective bending stiffness was estimated. To explore evolutionary and ecological patterns, phylogenetic comparative analyses
  • the saxicoline habitat might be explained by the extensive spectrum of this very variable habitat category that includes karst, granite, cave, and intertidal ecotypes. For example, granite and karst have different structures [90][91]. Importantly, fine-scale data on the surface properties such as
  • surface roughness at a scale pertinent to the size and interactions of the epidermal microstructures are generally scarce [30][31][33][80][83][92] and non-existent for arboreal Cyrtodactylus. Among all ecotypes analysed, the crown habitat of trees apparently imposes the strongest selective pressure on
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Published 06 Jan 2026

Reduced graphene oxide paper electrode for lithium-ion cells – towards optimized thermal reduction

  • Agata Pawłowska,
  • Magdalena Baran,
  • Stefan Marynowicz,
  • Aleksandra Izabela Banasiak,
  • Adrian Racki,
  • Adrian Chlanda,
  • Tymoteusz Ciuk,
  • Marta Wolczko and
  • Andrzej Budziak

Beilstein J. Nanotechnol. 2026, 17, 24–37, doi:10.3762/bjnano.17.3

Graphical Abstract
  • specific surface area, and low bulk density [3][4]. The role of rGO in electrode materials can be considered in two ways. It can be applied as a conductive additive, improving transport properties and, as a result, enhancing capacity [5]. It can also be the active material itself [6][7]. To mention just a
  • illustration of these functional epoxide, ketone, hydroxy, and carboxyl groups on the surface of a rGO flake is shown in Figure 1a. In addition, the adjustability of lateral size and thickness of the rGO flakes, which influence functional parameters [23], is another advantage of these materials. According to
  • [31] and flake edge exposition on the rGO paper surface, improving accessibility of the redox sites for electrolyte and lithium ions. Microwave methods, which also lead to changes in morphology (i.e., expansion) of the material, require thermal pre-treatment since GO weakly absorbs incident microwaves
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Published 05 Jan 2026

Competitive helical bands and highly efficient diode effect in F/S/TI/S/F hybrid structures

  • Tairzhan Karabassov,
  • Irina V. Bobkova,
  • Pavel M. Marychev,
  • Vasiliy S. Stolyarov,
  • Vyacheslav M. Silkin and
  • Andrey S. Vasenko

Beilstein J. Nanotechnol. 2026, 17, 15–23, doi:10.3762/bjnano.17.2

Graphical Abstract
  • the diode efficiency is due to competing contributions of the two superconducting islands to the supercurrent with single helical bands linked through the topological insulator surface. Keywords: hybrid structures; proximity effect; superconducting diode effect; superconductivity; topological
  • based on topological insulators (TIs) are interesting since they offer strongest SOC rendering linear spin-polarized dispersion for the surface states [73]. The diode effect in TI-based structures has been reported in Josephson junctions, as well as in hybrid structures. In practice, when producing
  • superconducting regions with a proximity-induced in-plane exchange field on top of the TI. The Fermi contour of the TI surface states is usually represented by the Dirac spectrum, that is, a single helical band, which is characterized by the strongest spin-momentum locking effect. Here, we consider the F/S/TI/S/F
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Published 05 Jan 2026

Quantitative estimation of nanoparticle/substrate adhesion by atomic force microscopy

  • Aydan Çiçek,
  • Markus Kratzer,
  • Christian Teichert and
  • Christian Mitterer

Beilstein J. Nanotechnol. 2026, 17, 1–14, doi:10.3762/bjnano.17.1

Graphical Abstract
  • various fields such as energy storage [1], electronics [2], and catalysis [3]. These tiny particles, with sizes typically ranging from 1 to 100 nm, have fundamentally different properties compared to their bulk counterparts because of their large surface-to-volume ratio [4], as well as unique electronic
  • [15][16][17]. However, achieving consistently accurate manipulation of NPs has inherent limitations due to limited knowledge of the exact geometry of the AFM tip as well as the complex interactions involving surface contact area and interfacial friction between the AFM tip, NPs, and the substrate [18
  • utilized as a tool for the manipulation of the NPs in order to determine the adhesion forces. The NPs were pushed in normal direction to the AFM cantilever’s long axis by scanning the surface with the AFM tip in contact mode. The corresponding lateral forces necessary to move NPs were determined. The
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Published 02 Jan 2026

Internal 3D temperature mapping in biological systems using ratiometric light-sheet imaging and lipid-coated upconversion nanothermometers

  • Dannareli Barron-Ortiz,
  • Enric Pérez-Parets,
  • Rubén D. Cadena-Nava,
  • Emilio J. Gualda,
  • Jacob Licea-Rodríguez,
  • Juan Hernández-Cordero,
  • Pablo Loza-Álvarez and
  • Israel Rocha-Mendoza

Beilstein J. Nanotechnol. 2025, 16, 2306–2316, doi:10.3762/bjnano.16.159

Graphical Abstract
  • devices with several disadvantages, including limited sensitivity and low accuracy, and are generally restricted to contact surface measurements [2]. Beyond fundamental processes, temperature also serves as a key biomarker for pathological conditions such as cancer. Localized hyperthermia often arises
  • and particle retention [57]. Figure 5b–d shows the fluorescence emission throughout the intestinal structure post-ingestion, indicating UCNP accumulation within the lumen. This localization is strongly influenced by surface chemistry. The anionic character of our DOPS-rich lipid coating likely leads
  • to the luminal environment rather than intracellular regions, indicating that surface chemistry governs not only nanoparticle uptake but also the spatial interpretation of the thermal maps. This distinction is crucial, as it means our thermal maps report on the temperature within the digestive tract
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Published 22 Dec 2025

Terahertz-range on-chip local oscillator based on Josephson junction arrays for superconducting quantum-limited receivers

  • Fedor V. Khan,
  • Lyudmila V. Filippenko,
  • Andrey B. Ermakov,
  • Mikhail Yu. Fominsky and
  • Valery P. Koshelets

Beilstein J. Nanotechnol. 2025, 16, 2296–2305, doi:10.3762/bjnano.16.158

Graphical Abstract
  • ]. Nontheless, the use of Nb alloys will only partially solve the problem of high-frequency generation due to high surface losses in NbN and NbTiN [18][25][26]. Note that the use of Nb–Al/AlN–NbN allows for the fabrication of tunnel junctions with a tunnel current density of up to 100 kA/cm2 with a quality
  • technological cycle, the molybdenum film with a thickness of 100 nm (surface resistance of approx. 1 Ω/square) is used. A shunt is crucial for reducing the McCumber parameter to the value of ≈0.3 in order to provide a hysteresis-free current–voltage characteristic (IVC) [3]. The parameters of the single
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Published 22 Dec 2025

Improving magnetic properties of Mn- and Zn-doped core–shell iron oxide nanoparticles by tuning their size

  • Dounia Louaguef,
  • Ghouti Medjahdi,
  • Sébastien Diliberto,
  • Klaus M. Seemann,
  • Thomas Gries,
  • Joelle Bizeau,
  • Damien Mertz,
  • Eric Gaffet and
  • Halima Alem

Beilstein J. Nanotechnol. 2025, 16, 2285–2295, doi:10.3762/bjnano.16.157

Graphical Abstract
  • magnetic performance due to their reduced surface spin disorder [7]. Polyhedral NPs exhibit higher magnetic saturation, less spin canting, and higher SAR values than spherical NPs. For instance, Kasparis et al. demonstrated that polyhedral Zn0.4Fe2.6O4 NPs exhibited SAR values more than double those of
  • is critical as polyhedral-shaped NPs have been shown to exhibit superior magnetic properties compared to spherical particles due to increased surface area and facet effects [17]. High-resolution TEM images (Figure 1a) reveal well-defined, monodisperse polyhedral Zn0.4Fe2.6O4 nanoparticles with an
  • observed peak positions and their shift, highlighting the impact of lattice distortions, bond strengthening, and interfacial interactions on the vibrational properties of the material [18]. The presence of peaks at ≈2850 cm−1 and ≈2920 cm−1 is associated with the C–H stretching vibrations from surface
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Published 15 Dec 2025

Visualizing nanostructures in supramolecular hydrogels: a correlative study using confocal and cryogenic scanning electron microscopy

  • Shaun M. Smith,
  • Ferdinando Malagreca,
  • Jacqueline Hicks,
  • Giuseppe Mantovani,
  • David B. Amabilino,
  • Christopher Parmenter and
  • Lluïsa Pérez-García

Beilstein J. Nanotechnol. 2025, 16, 2274–2284, doi:10.3762/bjnano.16.156

Graphical Abstract
  • crystals form, the presence of the ethanol and/or the mechanical strength of the gel are believed to obviate the problem here). The subsequent sublimation of surface ice exposes the underlying fibres. This allows for high-resolution imaging without the extensive drying that can collapse fibrous networks
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Published 12 Dec 2025

Geometry-controlled engineering of the low-temperature proximity effect in normal metal–superconductor junctions

  • Munisa A. Tomayeva,
  • Vyacheslav D. Neverov,
  • Andrey V. Krasavin,
  • Alexei Vagov and
  • Mihail D. Croitoru

Beilstein J. Nanotechnol. 2025, 16, 2265–2273, doi:10.3762/bjnano.16.155

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  • hybrid devices by enhancing normal quasiparticle scattering at the expense of Cooper pair transport [42]. Although interface transparency can be tuned by chemical surface treatments or in situ growth [43], an alternative and less explored approach is to control the proximity effect via the geometry of
  • one takes into account that GI is proportional to the transmission probability T across the interface. This quantity depends on both the transmission probability of the individual conduction channels near the Fermi surface and on the total number of such channels. Both contributions are expected to
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Published 12 Dec 2025

Chiral plasmonic nanostructures fabricated with circularly polarized light

  • Tian Qiao and
  • Ming Lee Tang

Beilstein J. Nanotechnol. 2025, 16, 2245–2264, doi:10.3762/bjnano.16.154

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  • that templated the growth of quasihelical shells on the NC surface (Figure 1e). These seeded-growth methods have several advantages, namely, ease of synthesis, homogeneity and large optical dissymmetry of the product, scalability, and relatively low cost. Therefore, much effort has been devoted on
  • detail due to the focus here on structurally intrinsic chiral plasmonic nanostructures (cPNSs). 2 Constructing chiral plasmonic nanostructures using CPL Light can drive the collective oscillation of the free electrons in metals, known as surface plasmons in a plasmonic metal nanostructure. Part of the
  • space and localizing photochemical reactions. At the diffraction limit, light cannot be focused into a spot smaller than half its wavelength. However, waves of electrons on a metal surface can be compressed into space a tiny fraction of the wavelength of light. This allows visible and infrared light to
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Published 08 Dec 2025

Optical bio/chemical sensors for vitamin B12 analysis in food and pharmaceuticals: state of the art, challenges, and future outlooks

  • Seyed Mohammad Taghi Gharibzahedi and
  • Zeynep Altintas

Beilstein J. Nanotechnol. 2025, 16, 2207–2244, doi:10.3762/bjnano.16.153

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  • Seyed Mohammad Taghi Gharibzahedi Zeynep Altintas Division of Bioinspired Materials and Biosensor Technologies, Institute of Materials Science, Faculty of Engineering, Kiel University, 24143, Kiel, Germany Kiel Nano, Surface and Interface Science (KiNSIS), Kiel University, 24118, Kiel, Germany
  • biosensing platforms in detecting Co2+ ions and VB12 using RNA aptamer–gold nanoparticles colorimetric sensors, surface plasmon resonance sensors, chemiluminescence and electrochemiluminescence biosensors, and fluorescence biosensors (i.e., chemosensors, nanoclusters/nanoparticles-based sensors, and carbon
  • different food and pharma formulations include high-performance liquid chromatography (HPLC) [14], HPLC coupled with inductively coupled plasma-mass spectrometry (ICP-MS) [15], and a diode array detector [16], atomic absorption spectroscopy [17], surface-enhanced Raman spectroscopy [18][19], capillary
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Published 05 Dec 2025

Ultrathin water layers on mannosylated gold nanoparticles

  • Maiara A. Iriarte Alonso,
  • Jorge H. Melillo,
  • Silvina Cerveny,
  • Yujin Tong and
  • Alexander M. Bittner

Beilstein J. Nanotechnol. 2025, 16, 2183–2198, doi:10.3762/bjnano.16.151

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  • nanoparticle systems, one functionalized with an oligo(ethylene glycol) ligand, and one functionalized with a mixture of the same with a dimannoside ligand. The dimannoside ligand was chosen to mimic the surface chemistry of viral spike proteins. We characterized the particles by electron microscopy, dynamic
  • high and the shape cannot be identical (hemagglutinin is roughly a triangular 7 nm prism of 15 nm length), the size is in the typical NP range, and a dense coating with oligomannoside should mimic surface physics. Accordingly, we note that the adsorption of AuNPs on surfaces would mimic the survival of
  • and stability in solution, in terms of hydrodynamic diameter and NP surface charge, respectively. Spectroscopy techniques were used to analyze the chemical composition of the organic ligands locally. We used FTIR for the molecular fingerprint infrared region to find the characteristic peaks of the
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Published 04 Dec 2025

Missing links in nanomaterials research impacting productivity and perceptions

  • Santosh K. Tiwari and
  • Nannan Wang

Beilstein J. Nanotechnol. 2025, 16, 2168–2176, doi:10.3762/bjnano.16.149

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  • Santosh K. Tiwari Nannan Wang Centre for New Materials and Surface Engineering, Department of Chemistry, NMAM Institute of Technology (NMAMIT), Nitte (Deemed to be University), Nitte 574110, Karnataka, India State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite
  • nanomaterials becomes a tedious and expensive task, often more so than for advanced bulk materials. It is indispensable to acknowledge that even after detailed characterization, warranting that even 90% of the nanoparticles have uniform size and identical surface characteristics is difficult. This is largely
  • due to the inherent instability of 0D, 1D, and 2D nanomaterials [23]. That is why, in most cases, nanomaterials require a specific medium and controlled environment for stability. In the same line, due their high surface energy, large surface area, and small size, nanomaterials naturally tend to
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Perspective
Published 03 Dec 2025
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